What is CVE-2026-19278?

CVE-2026-19278 is a medium-severity vulnerability in Red Hat Advanced Cluster Security 4, classified under CWE-625. CVSS score: 6.8/10. Published 2026-08-10.

How severe is CVE-2026-19278?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Red Hat Advanced Cluster Security 4

CVE-2026-19278

A flaw was found in StackRox/RHACS Central's Auth Machine-to-Machine (M2M) token exchange. When an administrator configures M2M role mappings, the system uses unanchored regular expressions for matching claim values. This allows an attacke…

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Red Hat Advanced Cluster Security 4

Weakness classification (CWE)

CWE-625

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-19278?: CVE-2026-19278 is a medium-severity vulnerability in Red Hat Advanced Cluster Security 4, classified under CWE-625. CVSS score: 6.8/10. Published 2026-08-10.
How severe is CVE-2026-19278?: Medium severity. CVSS v3 base score is 6.8 out of 10.